Perhaps you should try some spelling variations:
4.2.2 communication » 4.2.1 communication, 4.2.4 communication, 8.2.2 communication
technological open » technological model, technological power, technological options
au developpement » du developpement, de developpement, le developpement
developpement du » developpement de, developpement des, developpement et
innovation rate » innovation race, innovation create, innovation state
du afrique » en afrique, l afrique, de l'afrique
costs au » costs a, costs amy, costs _
c 4.2.2 » pc 4.2.2, 1 4.2.2, 2 4.2.2
rate c » rate co, rate _, rate 4

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technological open innovation rate c 4.2.2 communication costs au developpement du afrique.*.